Surf Forecasts:
Kennebunk Beach surf forecast from 12 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 11PM (local time) - 4.5ft (1.4m), 5s period, S swell with 109 kJ wave energy.
Best Forecast Surf Conditions for Kennebunk Beach this week:
The most powerful waves expected at Kennebunk Beach in the next 16 days are 1.4m 5s and forecast to arrive on Thursday (Sep 17) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Sep 14) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 17th Sep) | 4.5ft (1.4m) 5s |
Table - best surf conditions forecast for Kennebunk Beach over the next 16 days.
The Lowdown
Alright, Rusty here, and I gotta tell you, it's a tough watch on the Maine coast right now. For the next week and a half, it's flat and grim. We're lookin' at a solid ten days of barely a ripple at Kennebunk Beach, just ankle-slappers and onshore chop. Don't even bother waxing up.
Finally, there's a bit of a pulse around September 23rd. The swell starts to build Wednesday morning, with the combined energy hitting 167 (moderate wave energy) and a 4 ft swell from the SE. The wind's light and cross-offshore, so it'll be clean, but it's still pretty ordinary. That afternoon the energy jumps to 538 (moderate to strong) with 5 ft from the E, but the period is a short 8 seconds, so it'll be a bit lumpy and won't have much punch. This is the best of a bad bunch.
Then September 25th, Friday, looks like the stand-out window. An offshore NE breeze at 12 mph will groom that 4 ft ESE swell nicely, and the energy is a solid 286 (moderate). The period stretches to 9 seconds, so there's a bit more shape to it. The water temp is 63°, which is about 2° warmer than average for this time of year, so you won't need a full 5/4 just yet.
Honestly, the whole run is a slow burn. Nothing is big enough to be a standout, nothing has great quality. It’s one of those stretches where you just wait. A couple of days in the second week, like the 23rd and 25th, are the only ones worth a look, and even then, keep your expectations low. The break is sheltered and inconsistent, so you need a good combo to get it working, and we don't quite have it.
Stay patient, keep an eye on it. Forecasts can shift.
- Rusty
Short Range ForecastModerate rain (total 14mm), heaviest on Sun afternoon. Warm (max 21°C on Mon afternoon, min 12°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Thu night. Warm (max 20°C on Thu night, min 11°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SE 9 | SE 10 | S 5 | SE 10 | SE 10 | SE 9 | SE 8 | SE 7 | SE 7 | SE 7 | E 6 | E 5 | ESE 7 | ESE 8 | ESE 7 | ESE 7 | E 7 | S 5 | ESE 6 | ESE 12 | ESE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 14 | 45 | 24 | 32 | 29 | 63 | 73 | 33 | 17 | 22 | 11 | 61 | 81 | 78 | 57 | 34 | 78 | 16 | 14 | 13 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross | on | cross-off | glassy | cross-off | cross-off | cross | cross-on | cross-on | cross-on | on | cross | cross | on | cross-on | cross | cross-off |
High Tide | 12:43PM3.04m | 1:05AM2.98m | 1:24PM3.02m | 1:50AM2.85m | 2:05PM2.95m | 2:35AM2.69m | 2:47PM2.86m | 3:22AM2.54m | 3:31PM2.75m | 4:11AM2.39m | 4:19PM2.64m | 5:06AM2.28m | 5:14PM2.55m | ||||||||
Low Tide | 6:50PM-0.10m | 7:10AM-0.05m | 7:35PM-0.06m | 7:51AM0.08m | 8:19PM0.03m | 8:32AM0.24m | 9:05PM0.14m | 9:16AM0.40m | 9:54PM0.27m | 10:03AM0.53m | 10:47PM0.38m | 10:56AM0.64m | 11:46PM0.48m | ||||||||
 | |  |  |  |  |  | |  | | | | | | |  | |  | | | | |
 | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — |
 | — | 6:58 | — | — | 6:55 | — | — | 6:53 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — | — | 6:46 | — |
mm | — | — | — | 4 | 7 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | 7 | 7 | — | — |
Temp °C | 18 | 19 | 18 | 17 | 18 | 18 | 19 | 21 | 17 | 13 | 13 | 13 | 16 | 19 | 17 | 18 | 19 | 20 | 18 | 24 | 17 |
Feels °C | 15 | 15 | 15 | 16 | 19 | 20 | 18 | 20 | 12 | 11 | 10 | 11 | 14 | 17 | 15 | 17 | 16 | 18 | 18 | 22 | 14 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 | SSE 4 | SE 8 | SE 7 | SE 7 | SE 7 | E 6 | E 5 | ESE 7 | ESE 8 | ESE 7 | ESE 7 | E 7 | ESE 6 | S 5 | S 5 | ESE 12 |
| kJ | 14 | 14 | 15 | 24 | 32 | 7 | 63 | 73 | 33 | 17 | 22 | 11 | 61 | 81 | 78 | 57 | 34 | 14 | 18 | 4 | 13 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | — | S 8 | — | SE 9 | SE 9 | — | — | S 15 | S 15 | SE 7 | ESE 9 | SE 13 | SE 13 | SE 13 | ESE 12 | ESE 12 | SE 7 | ESE 6 | SE 6 | SE 6 |
| kJ | 3 | — | 1 | — | 31 | 29 | — | — | 4 | 4 | 7 | 8 | 7 | 7 | 7 | 15 | 15 | 12 | 16 | 6 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | E 15 | ESE 9 | SSE 7 | E 13 | E 14 | E 13 | SE 13 | SE 9 | SE 9 | ESE 12 | ESE 12 | ESE 8 |
| kJ | — | — | — | — | — | — | — | — | — | 4 | 8 | 5 | 4 | 4 | 3 | 6 | 3 | 3 | 14 | 14 | 7 |
Wind waves Height (m) Direction Period (s) | — | SSE 3 | S 5 | SSE 4 | SSE 5 | — | — | — | NNE 4 | ENE 5 | — | — | — | S 3 | S 4 | S 3 | SSE 3 | S 5 | — | NNE 3 | NE 4 |
| kJ | — | 2 | 45 | 21 | 17 | — | — | — | 24 | 19 | — | — | — | 2 | 4 | 2 | 9 | 78 | — | 3 | 16 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 592 | 1326 | 636 | 62 | 235 | 442 | 11 | 11 | 11 | 462 | 1342 | 248 | 62 | 232 | 11 | 136 | 1288 | 45 | 11 | 324 | 62 |
Best forecast wave conditions in Maine | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Kennebunk Beach Surf forecast
The above surf forecast table for Kennebunk Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kennebunk Beach can be found by selecting the local surf guide option on the grey menu. Our Kennebunk Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kennebunk Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kennebunk Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kennebunk Beach is 17 km (11 miles) from Biddeford. If you plan a vacation in Maine, look for hotels and other accommodation in Biddeford. Biddeford has rooms for a wide range of budgets as well as car hire and transport links.
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